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Omni-MATH / In △ABC,ω is the circumcircle, I is the incenter and I_(A) is the A-excenter. Let M be the midpoint of arc (BAC)^ on ω, and suppose that X,Y are the projections of I onto MI_(A) an… · Discussion

Discussing In △ABC,ω is the circumcircle, I is the incenter and I_(A) is the A-excenter. Let M be the midpoint of arc (BAC)^ on ω, and suppose that X,Y are the projections of I onto MI_(A) an… · Omni-MATH

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